Retro try different combinations in facebook search and whole host of groups come up

a couple of groups are love of vintage antiques & collectables and anything glass

if you go to an australian group page, even if you don't request to join, on facebook down the right hand side (facing you) are similar suggested groups that may have relevance too !!  I have used this to find a heap of groups that I never would have found in the limited facebook search function.